#include <iostream>
#include <array>
#include <vector>
using namespace std;
int main()
{
    array<int,5> a = {1,2,3,4,5};
    for(auto element : a)
        cout<<element;
    //vector<int> v = {1,2,3,4,5};
    vector<int> v(a.begin(),a.end());
    //vector<int> v ;
    v.push_back(1);
    v.push_back(2);
    for(auto element : v)
        cout<<element;
    for(auto it = v.begin(); it != v.end(); it++)
       cout<<*it;
}